At a glance
ClinicalIndex Comparison RecordStandardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Effects of Hamstring Training in Different Modes on Stabilizing Knee Joints With Anterior Drawer Laxity
In Brief
A clinical study evaluating plate-loaded kneeling leg curl with internal rotation, plate-loaded squat press, and 1 other intervention for Knee Instability. Completed, enrolled 28 participants across 1 site.
Detailed Summary
Question: To investigate how different modes of thigh muscles strengthening exercises emphasizing the knee internal rotators can be as effective as possible in improving the static stability and agility of the knees with anterior drawer laxity. Design: Randomized controlled clinical trial. Participants and Interventions: Young men with anterior drawer laxity of the knee were randomly assigned to three experimental groups in different strengthening modes: plate-loaded squat press (SP), plate-loaded kneeling leg curl with internal rotation (KLCIR), and kneeling leg curl (KLC). The control group with stable knees received no training. Outcome measures: static and dynamic knee stability, isokinetic strength. The purpose of this paper was to find out an optimal solution to the enhancement of the static and dynamic knee stability to a great extent. Key words: anterior cruciate ligament; agility; knee stability; hamstring; knee internal rotator
Study Details
Timeline
Interventions
The participant was instructed to point toes toward medial side as knee flexing. This is an open-kinetic chain (OKC) exercise and medial hamstring was emphasized.
The subject was instructed to position his back properly against the backrest on a machine, with the feet slightly apart. He was instructed to place his feet higher on the foot plate and draw his two knees as close as possible while the knees flexed so that medial hamstring would supposedly bear more tension in the course of knee flexion. This is a closed-kinetic chain (CKC) exercise and was expected to strengthen the quadriceps and hamstring with medial hamstring emphasized.
An open-kinetic chain (OKC) exercise was intended to strengthen the hamstring muscle without lateralization emphasized.